Document Type : Research Paper

**Authors**

Department of Applied Mathematics, Faculty of Science, University of Kurdistan, Sanandaj, Kurdistan, Iran.

**Abstract**

In this work, a non-classical sinc-collocation method is used to find numerical solution of third-order boundary value problems. The novelty of this approach is based on using the weight functions in the traditional sinc- expansion. The properties of sinc-collocation are used to reduce the boundary value problems to a nonlinear system of algebraic equations which can be solved numerically. In addition, the convergence of the proposed method is discussed by preparing the theorems which show exponential convergence and guarantee its applicability. Several examples are solved and the numerical results show the efficiency and applicability of the method.

**Keywords**

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June 2023

Pages 643-663

**Receive Date:**25 July 2022**Revise Date:**27 December 2022**Accept Date:**04 January 2023